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  1. ,
    via GitHub by nathandunn

    Nginx does not handle websocket requests. Configure nginx proxy for websockets.

  2. ,

    You are probably trying to write to a connection when the other end (the remote end of the connection) has already closed it.

java.net.SocketException: Broken pipe  	at java.net.SocketOutputStream.socketWrite0(Native Method)	at java.net.SocketOutputStream.socketWrite(SocketOutputStream.java:109)	at java.net.SocketOutputStream.write(SocketOutputStream.java:153)	at org.apache.coyote.http11.InternalOutputBuffer.realWriteBytes(InternalOutputBuffer.java:740)	at org.apache.tomcat.util.buf.ByteChunk.flushBuffer(ByteChunk.java:434)	at org.apache.coyote.http11.InternalOutputBuffer.flush(InternalOutputBuffer.java:299)	at org.apache.coyote.http11.Http11Processor.action(Http11Processor.java:973)	at org.apache.coyote.Response.action(Response.java:183)	at org.apache.catalina.connector.OutputBuffer.doFlush(OutputBuffer.java:314)